Request a LI.FI Intents Quote

curl --request GET \
  --url 'https://api.sprinter.tech/lifi-intents/rfq?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&user=0x1F98431c8aD98523631AE4a59f267346ea31F984' \
  --header 'X-Auth-Token: YOUR_API_KEY'

import requests

response = requests.get(
    "https://api.sprinter.tech/lifi-intents/rfq",
    params={
        "srcChain": "eip155:8453",
        "dstChain": "eip155:42161",
        "amount": "100000000",
        "token": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "user": "0x1F98431c8aD98523631AE4a59f267346ea31F984",
    },
    headers={"X-Auth-Token": "YOUR_API_KEY"},
)
quote = response.json()["quotes"][0]

const params = new URLSearchParams({
  srcChain: "eip155:8453",
  dstChain: "eip155:42161",
  amount: "100000000",
  token: "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  user: "0x1F98431c8aD98523631AE4a59f267346ea31F984",
});

const response = await fetch(
  `https://api.sprinter.tech/lifi-intents/rfq?${params}`,
  { headers: { "X-Auth-Token": "YOUR_API_KEY" } }
);
const { quotes } = await response.json();
const quote = quotes[0];

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	url := "https://api.sprinter.tech/lifi-intents/rfq" +
		"?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000" +
		"&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831" +
		"&user=0x1F98431c8aD98523631AE4a59f267346ea31F984"

	req, _ := http.NewRequest("GET", url, nil)
	req.Header.Set("X-Auth-Token", "YOUR_API_KEY")
	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

{
  "quotes": [
    {
      "validUntil": 1754481615,
      "eta": 45,
      "quoteId": "3f8a1c72-95e4-4d6b-b0a1-2c7e9f4d8a13",
      "provider": "sprinter",
      "preview": {
        "inputs": [
          {
            "user": "0x00010000022105141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002210514833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "amount": "100000000"
          }
        ],
        "outputs": [
          {
            "receiver": "0x0001000002a4b1141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002a4b114af88d065e77c8cc2239327c5edb3a432268e5831",
            "amount": "99850000"
          }
        ]
      },
      "metadata": {
        "exclusiveFor": "0x4c4A2f8c81640e47606d3fd77B353E87Ba015584"
      },
      "failureHandling": "refund-automatic"
    }
  ]
}

{
  "error": "no available pools for request"
}

GET

lifi-intents

rfq

curl --request GET \
  --url 'https://api.sprinter.tech/lifi-intents/rfq?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&user=0x1F98431c8aD98523631AE4a59f267346ea31F984' \
  --header 'X-Auth-Token: YOUR_API_KEY'

import requests

response = requests.get(
    "https://api.sprinter.tech/lifi-intents/rfq",
    params={
        "srcChain": "eip155:8453",
        "dstChain": "eip155:42161",
        "amount": "100000000",
        "token": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "user": "0x1F98431c8aD98523631AE4a59f267346ea31F984",
    },
    headers={"X-Auth-Token": "YOUR_API_KEY"},
)
quote = response.json()["quotes"][0]

const params = new URLSearchParams({
  srcChain: "eip155:8453",
  dstChain: "eip155:42161",
  amount: "100000000",
  token: "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  user: "0x1F98431c8aD98523631AE4a59f267346ea31F984",
});

const response = await fetch(
  `https://api.sprinter.tech/lifi-intents/rfq?${params}`,
  { headers: { "X-Auth-Token": "YOUR_API_KEY" } }
);
const { quotes } = await response.json();
const quote = quotes[0];

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	url := "https://api.sprinter.tech/lifi-intents/rfq" +
		"?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000" +
		"&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831" +
		"&user=0x1F98431c8aD98523631AE4a59f267346ea31F984"

	req, _ := http.NewRequest("GET", url, nil)
	req.Header.Set("X-Auth-Token", "YOUR_API_KEY")
	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

{
  "quotes": [
    {
      "validUntil": 1754481615,
      "eta": 45,
      "quoteId": "3f8a1c72-95e4-4d6b-b0a1-2c7e9f4d8a13",
      "provider": "sprinter",
      "preview": {
        "inputs": [
          {
            "user": "0x00010000022105141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002210514833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "amount": "100000000"
          }
        ],
        "outputs": [
          {
            "receiver": "0x0001000002a4b1141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002a4b114af88d065e77c8cc2239327c5edb3a432268e5831",
            "amount": "99850000"
          }
        ]
      },
      "metadata": {
        "exclusiveFor": "0x4c4A2f8c81640e47606d3fd77B353E87Ba015584"
      },
      "failureHandling": "refund-automatic"
    }
  ]
}

{
  "error": "no available pools for request"
}

Prices an order against Sprinter liquidity and reserves that liquidity for the quote’s validity window. The response is shaped like a single element of LI.FI’s request-quote response, so an existing LI.FI intents client can consume it unchanged.

A quote is valid for 15 seconds. The reservation expires with it. Call POST /lifi-intents/transaction immediately — do not cache a quote or show it to a user for confirmation before converting it.

Behaviour


Exclusivity	Always exclusive to Sprinter. `metadata.exclusiveFor` returns the filler address
Protocol	Always `lifi-escrow`. Your API key must be provisioned for it
Quotes returned	Exactly one, or an error. There is no empty `quotes` array
Amount basis	`type=ExactInput` (default) reads `amount` as the input; `ExactOutput` reads it as the output
Token defaults	`srcToken` defaults to the same token symbol as `token`, resolved on the source chain

Errors

Status	Meaning	Retry?
`400`	No route configured for this chain/token pair, or invalid parameters	No — fix the request or ask about onboarding the route
`404`	Route exists, but no pool can serve it right now — capacity is reserved by other in-flight quotes, or pricing is unavailable	Yes, after a short backoff. Reservations expire in 15s, so pressure clears quickly
`401`	Missing or unrecognized `X-Auth-Token`	No

404 is a capacity answer, not a validity answer. Fall back to your own path if it persists, but a single retry a few seconds later often succeeds.

curl --request GET \
  --url 'https://api.sprinter.tech/lifi-intents/rfq?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&user=0x1F98431c8aD98523631AE4a59f267346ea31F984' \
  --header 'X-Auth-Token: YOUR_API_KEY'

import requests

response = requests.get(
    "https://api.sprinter.tech/lifi-intents/rfq",
    params={
        "srcChain": "eip155:8453",
        "dstChain": "eip155:42161",
        "amount": "100000000",
        "token": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "user": "0x1F98431c8aD98523631AE4a59f267346ea31F984",
    },
    headers={"X-Auth-Token": "YOUR_API_KEY"},
)
quote = response.json()["quotes"][0]

const params = new URLSearchParams({
  srcChain: "eip155:8453",
  dstChain: "eip155:42161",
  amount: "100000000",
  token: "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  user: "0x1F98431c8aD98523631AE4a59f267346ea31F984",
});

const response = await fetch(
  `https://api.sprinter.tech/lifi-intents/rfq?${params}`,
  { headers: { "X-Auth-Token": "YOUR_API_KEY" } }
);
const { quotes } = await response.json();
const quote = quotes[0];

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	url := "https://api.sprinter.tech/lifi-intents/rfq" +
		"?srcChain=eip155:8453&dstChain=eip155:42161&amount=100000000" +
		"&token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831" +
		"&user=0x1F98431c8aD98523631AE4a59f267346ea31F984"

	req, _ := http.NewRequest("GET", url, nil)
	req.Header.Set("X-Auth-Token", "YOUR_API_KEY")
	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

{
  "quotes": [
    {
      "validUntil": 1754481615,
      "eta": 45,
      "quoteId": "3f8a1c72-95e4-4d6b-b0a1-2c7e9f4d8a13",
      "provider": "sprinter",
      "preview": {
        "inputs": [
          {
            "user": "0x00010000022105141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002210514833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "amount": "100000000"
          }
        ],
        "outputs": [
          {
            "receiver": "0x0001000002a4b1141f98431c8ad98523631ae4a59f267346ea31f984",
            "asset": "0x0001000002a4b114af88d065e77c8cc2239327c5edb3a432268e5831",
            "amount": "99850000"
          }
        ]
      },
      "metadata": {
        "exclusiveFor": "0x4c4A2f8c81640e47606d3fd77B353E87Ba015584"
      },
      "failureHandling": "refund-automatic"
    }
  ]
}

{
  "error": "no available pools for request"
}

Address format

user, receiver and asset inside preview are ERC-7930 interoperable addresses — chain id and account packed into one byte string:

version(2) | chainType(2) | chainRefLen(1) | chainRef(n) | addrLen(1) | addr(20)

0x0001000002210514833589fc...2913 decodes to USDC on Base (0x2105 = 8453). metadata.exclusiveFor is a plain 20-byte hex address, not ERC-7930.

Next step

Pass the quote object straight to POST /lifi-intents/transaction to get the transaction that opens the order.

Authorizations

X-Auth-Token

string

header

required

Query Parameters

srcChain

string

required

Source CAIP chain ID (e.g., eip155:8453)

dstChain

string

required

Destination CAIP chain ID (e.g., eip155:42161)

amount

string

required

Amount in the smallest denomination

token

string

required

Destination (borrow) token address (hex)

user

string

required

User address on the source chain (hex)

srcToken

string

Source token address (hex). Defaults to the destination token's symbol on the source chain

receiver

string

Receiver address on the destination chain (hex); defaults to user

type

string

Quote algorithm type (ExactInput or ExactOutput); defaults to ExactInput

Response

LI.FI intents quotes

quotes

object[]

required

Quotes offered for the request. Sprinter returns exactly one.

Show child attributes

Credit

Liquidity

Solve RFQ

Behaviour

Errors

Address format

Next step

Authorizations

Query Parameters

Response

​Behaviour

​Errors

​Address format

​Next step

Authorizations

Query Parameters

Response

Behaviour

Errors

Address format

Next step